USFWS National Digital Library

- Cleaning Equipment
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service; uniforms; service patch;
- Everything is cleaned with an iodine solution and water after each use.
- Images
- Holding Area For Fertilized Eggs
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service;
- The fertilized eggs are placed in these holding areas with an iodine solution, which kills bacteria.
- Images
- Male Chinook Being Milked
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service; uniforms; service patch;
- Male Chinooks are milked and the eggs are then fertilized.
- Images
- Rinsing Eggs
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service;
- The eggs are rinsed a final time.
- Images
- Chinook Salmon Waiting To Be Spawned
- Fish hatcheries; Fisheries management; Fishes; Work of the Service;
- The Chinook salmon are held here after making their way up the elevator into the spawning room.
- Images
- Female Chinook Being Spawned
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service;
- The eggs are removed from the females and placed in a container. Each female Chinook has between 4,000-5,000 eggs.
- Images
- Fertilized Eggs Placed in Buckets
- Fish hatcheries; Fisheries management; Fishes; Work of the Service;
- Each bucket holds eggs from three females.
- Images
- Male and Female Chinook Are Separated
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service;
- Male and female Chinook salmon are separated prior to spawning.
- Images
- Transporting Buckets of Fertilized Eggs
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service;
- The buckets of fertilized eggs are transported in this cart.
- Images
- Tule Fall Chinook Females
- Fish hatcheries; Fisheries management; Fishes; Work of the Service;
- Tule fall Chinook females being bled out. Without this step blood can fix with the eggs and prevent fertilization.
- Images
- Fish Ladder
- Fisheries management; Fishes; Fish hatcheries;
- This fish ladder leads directly from the Columbia River. Salmon returning from the Pacific Ocean travel hundreds of miles to reach the place of their birth. The salmon's sense of smell will lead them up the river, to the fish ladder and right back...
- Images
- Mixing Salmon Eggs and Milt
- Fisheries management; Fishes; Fish hatcheries;
- Jane Chorazy, FWS External Affairs Specialist, assists with one of the many spawning tasks. Here she is mixing the harvested eggs with water and the milt (liquid containing the sperm) from the males.
- Images
- Mixing Harvested Eggs with Water and Milt
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS);
- Jane Chorazy, FWS External Affairs Specialist assists with one of the many spawning tasks. This one - mixing the harvested eggs with water and the milt (liquid containing the sperm) from the males.
- Images
- Fish Ladder
- Fish hatcheries; Fisheries management; Fishes;
- This fish ladder leads directly from the Columbia River. Salmon returning from the Pacific Ocean travel hundreds of miles to reach the place of their birth. The salmon's sense of smell will lead them up the river, to the fish ladder and right back...
- Images
- Service Hatchery Staff 'Crowd' Juvenile Salmon Out of a Raceway
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Service patch;
- Reverse view of Service employees 'crowding' juvenile Tule Fall Chinook Salmon out of a Hatchery 'pond,' or raceway, en route to their entry into the Columbia River.
- Images